boomines is often caused by the monitoring situation: room resonances, smaller speakers that can't reproduce the low frequency content well enough, speaker placement (too close to a wall, or even corner - especially rear-ported systems) and placing the speakers directly on a hard surface with any pads.
hth
Thanks to you and others for this info. Im running 2 CLR's ( no rear ports) and the speakers are 12" so they arnt too small. They are sitting on Padded carpet in "BackLine" configuration stacked one on the other, and pointed toward me. Standard room sheetrock and tables with no acoustics so that might be part of it.